Thread: 267 V8 bogs on hills

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Put 79 267 in 85 S10 blazer. Bogs on hills. Has rebuilt heads and lifters looked brand new. Could cam lobes be worn or expecting to much. Have Edelbrock 4 barl intake and new edelbrock 500. 4 speed auto

Remind me.Is the 267 a flat tappet cam??. Have you checked the fuel pressure??. What's the ignition look like??. New cap and rotor??. Is the ignition advancing correctly??. What kind of vacuum do you have at idle and under a load??. Is that a electronic advance or a HEI vacuum advance distributor??.

vacuum seems to be working better now that it's hooked up to right side of the carb. Had it backwards couple months ago. No computer hooked up.

won't run unless set at about 12 degs btdc, new mechanical fuel pump, has vacuum